Exercise 4 | Bonding Theories

What is the hybridization and the shape around the central atom of the following molecules?

NH4+, BeF2, CH3+, PCl6-, XeF2

NH4+ ⇒ 4 electron groups around N (4 atoms) ⇒ sp3 ⇒ tetrahedral

BeF2 ⇒ 2 electron groups around Be (2 atoms) ⇒ sp ⇒ linear

CH3+ ⇒ 3 electron groups around C (3 atoms) ⇒ sp2 ⇒ trigonal planar

PCl6- ⇒ 6 electron groups around P (6 atoms) ⇒ sp3d2 ⇒ octahedral

XeF2 ⇒ 5 electron groups around Xe (2 atoms + 3 lone pairs) ⇒ sp3d ⇒ trigonal bipyramidal